| 碳纳米管负载纳米MnO2复合材料对Pb2+吸附的研究 |
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| 引用本文： | 李俊巍,汪文君. 碳纳米管负载纳米MnO2复合材料对Pb2+吸附的研究[J]. 安徽化工, 2012, 38(2): 16-18 |
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| 作者姓名： | 李俊巍 汪文君 |
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| 作者单位： | 合肥工业大学材料学院,安徽合肥,230009;合肥工业大学材料学院,安徽合肥,230009 |
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| 摘 要： | 采用液相氧化还原法制备MnO2/MWNTs复合材料,通过SEM(扫描电子显微镜)观察MnO2在MWNTs表面的负载情况,XRD(X射线衍射仪)显示MnO2是以无定形态排列在MWNTs表面。吸附过程的前10分钟达到平衡吸附量的70%,80min达到吸附平衡,温度升高有益于吸附,pH值对吸附影响很大,吸附量随着pH值的上升而增加,对Pb2+脱除率甚至达到了95.31%。
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| 关 键 词： | 二氧化锰 碳纳米管 铅离子 吸附 |
Oxides Manganese/carbon Nanotubes as Adsorbent for Removal of Lead |
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| LI Jun-wei , WANG Wen-jun. Oxides Manganese/carbon Nanotubes as Adsorbent for Removal of Lead[J]. Anhui Chemical Industry, 2012, 38(2): 16-18 |
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| Authors: | LI Jun-wei WANG Wen-jun |
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| Affiliation: | (School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | A novel kind of manganese composites based on multiwalled carbon nanotubes（MnO2/MWNTs） was prepared and the obtained composites show good adsorption capacity for Pb2＋ from aqueous solution.SEM image of the composites depicts an entangled network of carbon nanotubes with clusters of manganese oxide attached to them.The XRD revealed manganese oxide covered MnO2/MWNTs was an amrphous phase.Within the first 10 min of contact time and 80 min come to adsorption equilibrium.The Pb2＋ removal capacity of MnO2/MWNTs increased with the increased of temperature.Solution pH value intensity influence the Pb2＋ removal capacity of MnO2/MWNTs.The Pb2＋ adsorption efficiency of MnO2/MWNTs enhanced with the go up of pH value. |
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| Keywords: | MnO2 MWNTs lead adsorption |
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